Dust-collector.



A T. NOE.

' DUST GOLLEUTOR.

1 APPLICATION IIL EI) SEPT, 21, 1907.

918,895, Patented Apr. 20, 1909.

PATENToFFieE.

UNITED, sTATEs AMoN T. Non, or PARNASSUS, PENNSYLVANIA, AssIGNoa 'ro- ELECTRIC RENOVATOR MANUFACTURING COMPANY, A eoarosArron OF PENNSYLVANIA.

l DUST-COLLECTOR.

Specification of Letters Patent.

Patented April 20, 1909.

Application flledseptember 21, 19 07. Serial'No, 393,986.

, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Im rovements in Dust-Collectors,

of which the ollowing is a specification.

My invention relates to dust collectors, and more particularlytoa device of this character designed for use in connection with pneumatic sweeping or renovating a paratus, such as is commonly'employed in ousecleaning.

' The primary object of mylinvention is to providea dust collector which shall be. so constructed as to effectively revent the escape of dust therefrom,'but om which the accumulations of dust may be quickly and readily removed. 7

With the above and other objects inview, my invention consists in theconstruction and arrangement hereinafter 'described, and illustrated in the accompanying drawings, in which, 1

Figure 11s a central longitudinal section of my im roved dust collector, complete. Fig.

2 is a p an View of the same, the top plate being removed for the sake of clearness. Fig. 3

is an inverted plan view of the top plate.

Fig. 4 is a plan View of one of the parts;here

inafter described, and Fig. 5 is a plan view of the end ring.

Referring to the drawings in detail, my improved dust collector comprises a'casing 1, preferably cylindrical, the walls of which are oraminous, and which, may consist either of wire gauze or, as shown, of erforated sheet material. The up er end 0 the'casing 1 is closed by means 0 anend late 2, provided with a handle 3, by which t 1e dust collector may be readily moved about. plate 2 is also orated lugs4, around its edge.

Intothe lower end of the casing is fitted a ring 5 internally screw-threaded, and 'provided with a lurality of lugs-6, correspondlugs and are screw-threaded at one end tore-,

ce1ve"thumbnuts 8, by means of which the two ends of the casingaresecured together.

The end plate 2 is formed with a series of internally 5 projecting, annular, concentric ribs9, the purpose of which will be hereinafter described; Resting on the ring 5 at the The end provided with a number of perlower end of the'casing is a frame comprising connectin the two rings, and of such leng that the rings are heldspaced apart, and the whole frame conforms to the shape of the frustum of a cone. The arms 12 are provided on their upper. surface witlra series of notches or steps 13 the purpose of which will now be descri ed. Resting in these notches are a plurality of concentrically-arranged frames shown in the present instance as consisting of cylindrical partitions 14, preferably formed of wire gauze. Owing to the inclined position of the arms 12, it will be seen that these artitions 14 are disposed one within the ot er in steppedrelatiomthe inner partition being the shortest, but the tops of all of the partitions lying substantially in thesame plane, and some distance below the end plate 2. f

Alternating withthe frames or'partitions 14 is a second set or series of similar artitions 15, which abut against the top of the casing and are held in position by means of the ribs 9 thereon. Secured to one end of the casing, as at 17, is one end of a continuous, tubular, web or closely woven though plorous material, and is looped backand ort around the ends of the above-described alternating frames or partitions. As will be seen fromFig. 1,

chambers formed by the innermost partition 14. It will therefore. be seen that the two series of porous partitions, combined with the tubular web 'or fabric, form a series of annular, concentric chambers of tapering form, some of which as 23 open upward and the others, 24, downward. It will; be observed, however, that the chambers 23 opening upward have no communication with the other chambers, and do not to collect the dust. p

The lower end of the casing 1 is closed by means of a removable bottom 19, fitted with screw-threads 20, cooperating with the threads formed on the ring 5, jus't described.

Projecting upwardly from the center of closed, as at 18, and constitutes a top for the" serve atc2 fabric 16, which fabric .is preferably of 1 this web or fabric passes over the tops of this bottom .19, and preferably formed integral therewith, is a spout or conduit 21, which when the bottom is in position in the casing, projects well up into the innermost .chaniber of the series. This spout or con duit is adaptcd'to be connected with the discharge from any suitable fan or pump.

and thus serves -to deliver dust-laden air escape, is by passing u wardly and radially into the casin It will be seen, therefore, that the dust-dadcn air entermgthc innermost chamber, filters through the orous partitions and associated fabric, the dust being retained by the partitions and fabric, and the air escaping through the outer walls of the casing. It is to be noted that the dust is collected solely in the annular chambers which open downwardly, the other" chambers being entirely closed. This will be obvious from the fact that, since the dust laden airenters the casing on the lower side of the fabric, and since the fabric is continuous, the only way in which the air can throu h the fabric. he fabric thus acts as a ilter, and substantially all the dust is entrained thereby and deposited in :the chambers which. open downwardly.v This construction results in the, dust all accumulating on one side ofthe fabric and in one end of the'dust collector. It will, therefore, be apparent that, by simply removing the bottom 1 9, and ently tapping or jarring the casing, all of t e entrapped dust will fall out of the lower end of the dust collector.

The end'plate 2 is not secured rigidly to the casmg 1, but can slide freely therein,

and hence, b screwing u the thumb-nuts 8 and thus rawing in t e endplate, the lower ends of the partitions 15 will be forced against the loops of fabric in which they rest, and this serves to put and maintain the fabric under tension.

It will thus be seen that I advantages. thereof will be readily appreciated by those skilled in the art.

What I claim is:

1. A dust collector comprising an outer foraminouscasing, a plurality of frames nested one Within the other within said casall of which open toward the lower end of the have provided a dust collector which is simple to construct, and which may be very easily and readily v cleaned, and it is thought the numerous casing, a removable closure for said end, and a conduit carried by said closure for discharging dust-laden air into the casing. 3. A dust collector'comprising an outer foraininous casing having an imperforate closure at the upper end and a removable closure at the lower end provided withan inlet opening for conductin dust-laden air in! o 'the casing, a plurality of frames nestedone within the other within said casing, and a filtering sack stretched over said frames and coiiperating therewith to form a series of annular dust collecting chambers all of which 0 en toward that end of the casing carrying t e removable closure. I

4. A dust collector comprising an outer foraminous casing having an imperforate closure at one end and a removable closure at jecting inlet spout for discharging dust-laden air ,into the casing centrally thereof, a plurality of frames nested one within the other in said casing, and a filtering sack stretched over said frames to provide a series of'annular dust collecting chambers all of which open toward that end of the casing carrying the removable closure.

5. A dust collector comprising a foraminous cylindrical casing, top and bottom closures therefor, said' bottom closure being removably attached 'to the casing and prorality of concentric partitions abutting directly against the top closure, a plurality of concentric partitions alternating with the first and terminatin short of the u or closure, means within the lower end 0 the easing for supportin the said last named partitions, and a tubu ar filtering sack secured at forth over said artitions to form a series of annular dust col ecting chanibers all of which 0 en toward that end of the casing carrying t e removable closure.

6. A dust collector comprising a foraminous cylindrical easing, a plurality of concentric partitions abutting against one. end thereof, a plurality of concentric partitions of different lengths supported in stepped relation at the other end of the casing and alternating with the first named partitions, all of said partitions being of less ength than the casing and the innermost one being the shortest, a continuous tubular web of filtering material 100 ed back andforth over said artitions, there y forming a series of annuing and a removable closure for said end.

' 7. A dust collector comprising an outer foraminous casing, concentricall arranged frames nested one within the ot er in said casing,--a filtering sack stretched over said frames and cooperating therewith to rovide a series of concentric annular dust co ectmg the lower end provided with an inwardly pro- 5 one end to said casing and looped back and i ar'concentric dust collecting chambers all of" l which open toward the lower end of the easvided with an inlet for dust-laden air, a plulower end of the casing, and a removable closure for said end, the arrangement being such that when theclosure is removed, dust accumulations in the concentric chambers may be dislodged therefrom and discharged through the said end of the casing.

8. A dust collector "comprising an outer foraminous casing, a 'plurality of frames nested one within the other within said casing, a filtering sack stretched over the ends of alternate frames and cooperating therewith to form a central dust receiving compartment and a series of annular dust receiving chambers surrounding said central compart- 15 ment and all of which open toward thelowcr end of the casing, and a conduit for discharging dust-laden air centrally of the casingaml directly into said central compartment.

In testimony whereof I have aflixed my 20 signature in presence of' two witnesses;

, AMON T, Non. Witnesses: I

A. H. KAUFMAN. I It. 1*. DrLwoR'rn. 

